CN107588891A - Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device - Google Patents
Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device Download PDFInfo
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- CN107588891A CN107588891A CN201711029857.6A CN201711029857A CN107588891A CN 107588891 A CN107588891 A CN 107588891A CN 201711029857 A CN201711029857 A CN 201711029857A CN 107588891 A CN107588891 A CN 107588891A
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Abstract
Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device, including spline switching mandrel and mouse cage bushing；The spline switching mandrel is made up of base, bearing and pull bar；The mouse cage bushing is the assembly of cylindrical shape body and top cover, multiple bar-shaped troughs of barrel lower end anchor ring are provided through on the barrel of cylindrical shape body, barrel lower section is divided into multiple arcs piece, the centre of top cover is provided with the via passed through for the external thread section of the pull bar；The mouse cage bushing is sleeved on the frustum of a cone cylinder of spline switching mandrel holder top, and the nut combined by the pull bar external thread section with spline switching mandrel is fixed.Such a balance device structure is simple, Equilibrium precision is high, can not only ensure the accuracy of impeller disk amount of unbalance test, and the workload that can be reduced the cost of manufacture of bascule and assemble when letter is tested less.
Description
Technical field
The invention belongs to fanjet compressor rotor in aircraft to assemble field, more particularly to fanjet compressor
The device (frock) of the single-stage impeller disk balance test of rotor.
Background technology
Fanjet compressor rotor is mainly by rotating shaft, the multi-stage impeller in rotating shaft and middle ring group in aircraft
Into every one stage impeller is made up of the impeller disk and multiple blades.The quality of rotor balancing directly affects the vibration of engine complete machine, institute
The balance quality of rotor can effectively be improved with the raising of single-stage impeller disk balance quality, ensure global vibration of engine and start
Machine performance meets the requirements.
The balance quality of engine compressor rotor single-stage impeller disk is assembled on balancing machine by bascule (frock)
Carry out amount of unbalance test to be adjusted, existing bascule (frock) is generally by serves 8, dividing bush 9, switching mandrel
7 and cover plate 10 be bolted and combine (see accompanying drawing 7).Because composition component is more, thus problems be present：Balance
There is larger amount of unbalance in device, Equilibrium is difficult to, and this amount of unbalance measurement result for directly resulting in the impeller disk is missed
It is poor big, so that the later stage, to be assembled into the balance qualification rate after rotor low；Because processing public affairs be present in the axis hole being tested on the impeller disk
Difference, to eliminate the fit-up gap between bascule and tested impeller disk axis hole, it is necessary to process multigroup other interval by tolerance
Bushing (such as 0.08mm machining tolerance, need to process eight groups of dividing bushes), not only increase the cost of manufacture of bascule, and
Add the workload that dividing bush is matched during assembling.
The content of the invention
A kind of present invention aims to overcome that the deficiencies in the prior art, there is provided mouse simple in construction, Equilibrium precision is high
Cage flexible balance device, to ensure the accuracy of impeller disk amount of unbalance test, reduce cost of manufacture and the letter of bascule
The workload assembled when testing less.
Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device of the present invention, including spline turn
Connect mandrel and mouse cage bushing；The spline switching mandrel is made up of base, bearing and pull bar；The top surface of base is provided with and is tested
First toroidal cavity of impeller disk central axle sleeve bottom combination, the bottom surface of base is provided with the round boss combined with balancing machine
With the second toroidal cavity, the center line of first toroidal cavity, round boss and the second toroidal cavity is and base
Center line on the same line；Bearing is lower upper small greatly for cylindrical shape outer spline section and on cylinder outer spline section
The assembly of frustum of a cone cylinder, the cylindrical shape outer spline section match with tested impeller disk central axle sleeve lower section internal splined hole,
The frustum of a cone cylinder is used for recessed with mouse cage bushing combination, the cylinder outer spline section lower end of bearing and the first annular of base
Trough floor is integrated, and position of the bearing on the first toroidal cavity bottom plate should make in the center line and base of bearing
Heart line is on the same line；Pull bar is cylindrical rod piece, and upper end is provided with external thread section, pull bar be located in the endoporus of bearing and under
End is connected or is integrated with the first toroidal cavity bottom plate, position of the pull bar on the first toroidal cavity bottom plate
Should make pull bar center line and base center line on the same line；Mouse cage bushing is the combination of cylindrical shape body and top cover
Body, multiple bar-shaped troughs of barrel lower end anchor ring are provided through on the barrel of cylindrical shape body, barrel lower section are divided into more
Individual arc-like sheet, the centre of top cover are provided with the via passed through for the external thread section of the pull bar, the external diameter of cylindrical shape body
Matched with tested impeller disk central axle sleeve upper segment internal diameter, endoporus matches with the maximum outside diameter of the frustum of a cone cylinder；The mouse
Cage bushing is sleeved on the frustum of a cone cylinder of spline switching mandrel bearing, passes through the pull bar external thread section group with spline switching mandrel
The nut of conjunction is fixed.
Above-mentioned fanjet rotor single-stage disk balance test squirrel-cage flexible balance device, the bar-shaped trough is in mouse cage
It is uniformly distributed on the body barrel of bushing, the height h of bar-shaped trough is the 2/3~4/5 of body height, and the width of bar-shaped trough is 1mm
~2mm..
Above-mentioned fanjet rotor single-stage disk balance test squirrel-cage flexible balance device, quilt on the body barrel
Bar hole is provided with each arc-like sheet that bar-shaped trough is divided into, to further enhance the elasticity of mouse cage bushing.
Compared with prior art, the invention has the advantages that：
(1) because the basic building block of squirrel-cage flexible balance device of the present invention is only spline switching mandrel and mouse cage lining
Two pieces is covered, and each part of spline switching mandrel is integrated, thus the device Equilibrium precision is high, it is ensured that leaf
The accuracy of wheel disc amount of unbalance test.
(2) due to being set in squirrel-cage flexible balance device of the present invention on the barrel of the cylindrical shape body of mouse cage bushing
There are multiple bar-shaped troughs through barrel lower end anchor ring, barrel lower section is divided into multiple arcs piece, thus the lining of such a structure
Cover flexible, certain deflection be present, coordinate with holder top frustum of a cone cylinder, by tightening when assembling the tested impeller disk
Nut can eliminate the fit-up gap between the tested impeller disk and mouse cage bushing.
(3) because the basic building block of squirrel-cage flexible balance device of the present invention is only two pieces, processing is not only reduced
Cost of manufacture, and operation is easier when assembling the tested impeller disk, greatly reduces operating error, reduces assembly work
Amount.
Brief description of the drawings
Fig. 1 is the signal of fanjet rotor single-stage disk balance test squirrel-cage flexible balance device of the present invention
Figure；
Fig. 2 is spline in fanjet rotor single-stage disk balance test squirrel-cage flexible balance device of the present invention
The schematic diagram for mandrel of transferring；
Fig. 3 is Fig. 2 top view；
Fig. 4 is mouse cage in fanjet rotor single-stage disk balance test squirrel-cage flexible balance device of the present invention
The schematic diagram of bushing；
Fig. 5 is Fig. 4 top view；
Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device of the present invention when Fig. 6 is test
With the combination diagram of the tested impeller disk and balancing machine；
Existing bascule and the tested impeller disk and balancing machine when Fig. 7 is structural representation and the test of existing bascule
Combination diagram；
In figure, 1 spline switching mandrel, 1-1 bases, the annular grooves of 1-1-1 first, 1-1-2 screws, 1-1-3 round boss,
The annular grooves of 1-1-4 second, 1-2 bearings, 1-2-1 outer spline sections, 1-2-2 frustum of a cone cylinders, 1-3 pull bars, 1-3-1 external screw threads
Section, 2 mouse cage bushings, 2-1 bodies, 2-2 bar-shaped troughs, 2-3 vias, 2-4 bar holes, 2-5 top covers, 3 nuts, 4 bolts, 5 impeller disks,
6 balancing machines, 7 switching mandrels, 8 serves, 9 dividing bushes, 10 cover plates.
Embodiment
Mouse is used to fanjet rotor single-stage disk balance test of the present invention by way of example and in conjunction with the accompanying drawings
Cage flexible balance device and application method are described further.
In the present embodiment, fanjet rotor single-stage disk balance test squirrel-cage flexible balance device as shown in figure 1,
It is made up of spline switching mandrel 1, mouse cage bushing 2 and nut 3.
Spline switching mandrel 1 as shown in Figure 2 and Figure 3, is made up of base 1-1, bearing 1-2 and pull bar 1-3；Base 1-1 top
Face is provided with the first toroidal cavity 1-1-1 combined with being tested impeller disk central axle sleeve bottom, and base 1-1 bottom surface is provided with
The round boss 1-1-3 and the second toroidal cavity 1-1-4 combined with balancing machine 6, the first toroidal cavity 1-1-1, circle
Shape boss 1-1-3 and the second toroidal cavity 1-1-4 center line with the center line of base on the same line；Bearing is circle
Tubular outer spline section 1-2-1 and the lower small frustum of a cone cylinder 1-2-2 upper greatly on cylinder outer spline section assembly
(cylindrical shape outer spline section is integrated with frustum of a cone cylinder), the cylindrical shape outer spline section and tested impeller disk central shaft
The matching of lower section internal splined hole is covered, the frustum of a cone cylinder is used to combine with mouse cage bushing 2, under the cylinder outer spline section of bearing
The first toroidal cavity 1-1-1 bottom plates with base are held to be integrated, bearing is on the first toroidal cavity 1-1-1 bottom plates
Position should make bearing center line and base center line on the same line；Pull bar 1-3 is cylindrical rod piece, and upper end is set
There is external thread section 1-3-1, pull bar is located in the endoporus of bearing and lower end passes through weldering with the first toroidal cavity 1-1-1 bottom plates
Connect connected, fixed position of the pull bar on the first toroidal cavity 1-1-1 bottom plates should make the center line of pull bar and the center of base
Line is on the same line.
Mouse cage bushing 2 as shown in Figure 4, Figure 5, be cylindrical shape body 2-1 and top cover 2-5 assembly, the cylindrical jacket
Body 2-1 external diameter matches with tested impeller disk central axle sleeve upper segment internal diameter, the maximum of endoporus and the frustum of a cone cylinder 1-2-2
External diameter matches, and 20 bar-shaped trough 2-2 of barrel lower end anchor ring is provided through on cylindrical shape body 2-1 barrel, by under barrel
Section is divided into 20 arc-like sheets, and the bar-shaped trough 2-2 is uniformly distributed on the body barrel of mouse cage bushing, bar shaped groove height h
For the 2/3 of body height, width 1.5mm, bar hole 2-4 is provided with each arc-like sheet being divided into by bar-shaped trough 2-2；It is described
Top cover 2-5 centre is provided with the via 2-3 passed through for the external thread section 1-3-1 of the pull bar.
The combination of spline switching mandrel 1 and mouse cage bushing 2：Mouse cage bushing 2 is sleeved on spline switching mandrel bearing
On frustum of a cone cylinder 1-2-2, fixed by the nuts 3 combined of the pull bar external thread section 1-3-1 with spline switching mandrel.
When single-stage impeller disk is balanced test, the combination of the impeller disk 5 and squirrel-cage flexible balance device in the present embodiment
Mode and mounting means on balancing machine 6 are as shown in Figure 6.Assembly manipulation step is as follows：
1. being arranged on spline switching mandrel 1 on the base of balancing machine 6 first, hole position is directed at, bottom is assembled to, uses bolt
It is attached fixation；Mouse cage bushing 2 is sleeved on the frustum of a cone cylinder 1-2-2 of spline switching mandrel bearing again, then by spiral shell
Mother 3 combines with pull bar external thread section 1-3-1, fixed mouse cage bushing；
2. checking the residual unbalance, of squirrel-cage flexible balance device, and it is marked；
3. mouse cage bushing 2 is decomposed from spline switching mandrel 1, then by the center of tested single-stage impeller disk 5
Axle sleeve is sleeved in spline switching mandrel 1, passes through the internal spline and spline switching mandrel branch of the central axle sleeve lower section of the impeller disk 5
Seat bottom outer spline section 1-2-1 integrated positioning, then the lower section of mouse cage bushing 2 is loaded to the center for being tested single-stage impeller disk 5
In axle sleeve hole, then nut 3 is screwed on the external thread section 1-3-1 of spline switching mandrel pull bar upper end and tensed, makes mouse cage
Gapless between the central axle sleeve endoporus of bushing 2 and tested single-stage impeller disk 5；
4. covering balance hood, start balancing machine 6, the measurement of initial unbalance, is carried out to the impeller disk 5, finds out and dubs position
Put, and make and dub mark.
Claims (3)
1. a kind of fanjet rotor single-stage disk balance test squirrel-cage flexible balance device, it is characterised in that including spline
Mandrel of transferring (1) and mouse cage bushing (2)；
The spline switching mandrel is made up of base (1-1), bearing (1-2) and pull bar (1-3)；The top surface of base (1-1) is set
Have the first toroidal cavity (1-1-1) combined with tested impeller disk central axle sleeve bottom, the bottom surface of base (1-1) be provided with
The round boss (1-1-3) and the second toroidal cavity (1-1-4) of balancing machine (6) combination, the first toroidal cavity (1-1-
1), center line of the center line of round boss (1-1-3) and the second toroidal cavity (1-1-4) with base is in same straight line
On；Bearing is cylindrical shape outer spline section (1-2-1) and the lower small frustum of a cone cylinder upper greatly on cylinder outer spline section
The assembly of (1-2-2), the cylindrical shape outer spline section matches with tested impeller disk central axle sleeve lower section internal splined hole, described
Frustum of a cone cylinder is used to combine with mouse cage bushing (2), and the cylinder outer spline section lower end of bearing and the first annular of base are recessed
Groove (1-1-1) bottom plate is integrated, and position of the bearing on the first toroidal cavity (1-1-1) bottom plate should make in bearing
The center line of heart line and base is on the same line；Pull bar (1-3) is cylindrical rod piece, and upper end is provided with external thread section (1-3-
1), pull bar is located in the endoporus of bearing and lower end is connected with the first toroidal cavity (1-1-1) bottom plate or integrated knot
Structure, position of the pull bar on the first toroidal cavity (1-1-1) bottom plate should make pull bar center line and base center line same
On one straight line；
Mouse cage bushing (2) is the assembly of cylindrical shape body (2-1) and top cover (2-5), is set on the barrel of cylindrical shape body (2-1)
Multiple bar-shaped troughs (2-2) through barrel lower end anchor ring are equipped with, barrel lower section is divided into multiple arcs piece, top cover (2-5)
Centre be provided with the via (2-3) that the external thread section (1-3-1) for the pull bar passes through, cylindrical shape body (2-1)
External diameter matches with tested impeller disk central axle sleeve upper segment internal diameter, the maximum outside diameter of endoporus and the frustum of a cone cylinder (1-2-2)
Matching；
The mouse cage bushing (2) is sleeved on the frustum of a cone cylinder (1-2-2) of spline switching mandrel bearing, by with spline switching
The nut (3) of pull bar external thread section (1-3-1) combination of mandrel is fixed.
2. fanjet rotor single-stage disk balance test squirrel-cage flexible balance device according to claim 1, it is special
Sign is that the bar-shaped trough (2-2) is uniformly distributed on the body barrel of mouse cage bushing, and the height (h) of bar-shaped trough (2-2) is set
The 2/3~4/5 of body (2-1) height, the width of bar-shaped trough is 1mm~2mm.
3. according to the fanjet rotor single-stage disk balance test squirrel-cage flexible balance device of claim 1 or 2 or described,
It is characterized in that it is provided with bar hole (2- on each arc-like sheet being divided on body (2-1) barrel by bar-shaped trough (2-2)
4)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029857.6A CN107588891B (en) | 2017-10-27 | 2017-10-27 | Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029857.6A CN107588891B (en) | 2017-10-27 | 2017-10-27 | Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107588891A true CN107588891A (en) | 2018-01-16 |
| CN107588891B CN107588891B (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711029857.6A Active CN107588891B (en) | 2017-10-27 | 2017-10-27 | Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device |
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| CN (1) | CN107588891B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097995A (en) * | 2020-09-17 | 2020-12-18 | 中国航发成都发动机有限公司 | Balance adjusting device and method for turbofan engine rotor single-stage disc |
| CN113399721A (en) * | 2021-07-01 | 2021-09-17 | 中国航发贵州黎阳航空动力有限公司 | Method for milling squirrel cage window |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61121743A (en) * | 1984-11-16 | 1986-06-09 | Hitachi Ltd | Rotor for squirrel-cage induction motor |
| SU1744545A1 (en) * | 1987-01-30 | 1992-06-30 | Производственное Объединение "Московский Станкостроительный Завод" | Balancing device |
| CN101394122A (en) * | 2008-10-29 | 2009-03-25 | 西安交通大学 | High-speed main shaft electromagnetic type on-line dynamic balancing method |
| CN101487757A (en) * | 2009-01-20 | 2009-07-22 | 杭州南方通达齿轮有限公司 | Dynamic balancing measurement machine |
| CN102575968A (en) * | 2009-10-08 | 2012-07-11 | 莫斯柯米尔斯公司 | Balance test indexing tool for balance-testing a rotor |
| US20130067911A1 (en) * | 2011-09-15 | 2013-03-21 | Bret Dwayne Worden | Shaft imbalance detection system |
| CN205919927U (en) * | 2016-04-29 | 2017-02-01 | 沈阳透平机械股份有限公司 | Two cantilever leaf blade wheel rotor are balanced with connecting |
-
2017
- 2017-10-27 CN CN201711029857.6A patent/CN107588891B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61121743A (en) * | 1984-11-16 | 1986-06-09 | Hitachi Ltd | Rotor for squirrel-cage induction motor |
| SU1744545A1 (en) * | 1987-01-30 | 1992-06-30 | Производственное Объединение "Московский Станкостроительный Завод" | Balancing device |
| CN101394122A (en) * | 2008-10-29 | 2009-03-25 | 西安交通大学 | High-speed main shaft electromagnetic type on-line dynamic balancing method |
| CN101487757A (en) * | 2009-01-20 | 2009-07-22 | 杭州南方通达齿轮有限公司 | Dynamic balancing measurement machine |
| CN102575968A (en) * | 2009-10-08 | 2012-07-11 | 莫斯柯米尔斯公司 | Balance test indexing tool for balance-testing a rotor |
| US20130067911A1 (en) * | 2011-09-15 | 2013-03-21 | Bret Dwayne Worden | Shaft imbalance detection system |
| CN205919927U (en) * | 2016-04-29 | 2017-02-01 | 沈阳透平机械股份有限公司 | Two cantilever leaf blade wheel rotor are balanced with connecting |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112097995A (en) * | 2020-09-17 | 2020-12-18 | 中国航发成都发动机有限公司 | Balance adjusting device and method for turbofan engine rotor single-stage disc |
| CN112097995B (en) * | 2020-09-17 | 2022-08-12 | 中国航发成都发动机有限公司 | Balance adjusting device and method for turbofan engine rotor single-stage disc |
| CN113399721A (en) * | 2021-07-01 | 2021-09-17 | 中国航发贵州黎阳航空动力有限公司 | Method for milling squirrel cage window |
| CN113399721B (en) * | 2021-07-01 | 2022-06-03 | 中国航发贵州黎阳航空动力有限公司 | Method for milling squirrel cage window |
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| Publication number | Publication date |
|---|---|
| CN107588891B (en) | 2019-08-02 |
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